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Esser T, Trossmann V, Lentz S, Engel F, Scheibel T. Designing of spider silk proteins for human induced pluripotent stem cell-based cardiac tissue engineering. Mater Today Bio 2021; 11:100114. [PMID: 34169268 PMCID: PMC8209670 DOI: 10.1016/j.mtbio.2021.100114] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/01/2021] [Accepted: 05/08/2021] [Indexed: 12/25/2022] Open
Abstract
Materials made of recombinant spider silk proteins are promising candidates for cardiac tissue engineering, and their suitability has so far been investigated utilizing primary rat cardiomyocytes. Herein, we expanded the tool box of available spider silk variants and demonstrated for the first time that human induced pluripotent stem cell (hiPSC)-derived cardiomyocytes attach, contract, and respond to pharmacological treatment using phenylephrine and verapamil on explicit spider silk films. The hiPSC-cardiomyocytes contracted for at least 14 days on films made of positively charged engineered Araneus diadematus fibroin 4 (eADF4(κ16)) and three different arginyl-glycyl-aspartic acid (RGD)-tagged spider silk variants (positively or negatively charged and uncharged). Notably, hiPSC-cardiomyocytes exhibited different morphologies depending on the spider silk variant used, with less spreading and being smaller on films made of eADF4(κ16) than on RGD-tagged spider silk films. These results indicate that spider silk engineering is a powerful tool to provide new materials suitable for hiPSC-based cardiac tissue engineering. hiPSC-cardiomyocytes attach and contract on positively charged and/or RGD-tagged spider silk variants. hiPSC-cardiomyocytes exhibit spider silk variant-dependent morphology upon adhesion. Explicit spider silk variants promote long-term contractility of hiPSC-cardiomyocytes. hiPSC-cardiomyocytes grown on spider silk materials respond to pharmacological treatment.
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Key Words
- AFM, atomic force microscopy
- APTES, (3-aminopropyl) triethoxysilane
- ATR, attenuated total reflection
- DPBS, Dulbecco's phosphate-buffered saline
- EthHD1, ethidium homodimer 1
- FT-IR, Fourier-transform infrared (spectroscopy)
- IPTG, isopropyl-β-D-thiogalactoside
- MALDI-TOF, matrix-assisted laser desorption/ionization time-of-flight
- SDS-PAGE, sodium dodecyl sulfate-polyacrylamide gel electrophoresis
- eADF4, Engineered Araneus diadematus fibroin 4
- hiPSC, human-induced pluripotent stem cell
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Affiliation(s)
- T.U. Esser
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, 91054, Germany
| | - V.T. Trossmann
- Lehrstuhl Biomaterialien, Prof.-Rüdiger-Bormann Straße 1, Bayreuth, 95447, Germany
| | - S. Lentz
- Lehrstuhl Biomaterialien, Prof.-Rüdiger-Bormann Straße 1, Bayreuth, 95447, Germany
| | - F.B. Engel
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, 91054, Germany
- MURCE, Muscle Research Center Erlangen, Erlangen, Germany
- Corresponding author. Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, 91054, Germany.
| | - T. Scheibel
- Lehrstuhl Biomaterialien, Prof.-Rüdiger-Bormann Straße 1, Bayreuth, 95447, Germany
- Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG), Bayerisches Polymerinstitut (BPI), Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB), Bayreuther Materialzentrum (BayMAT), Universitätsstraße 30, Universität Bayreuth, Bayreuth, D-95447, Germany
- Corresponding author. Lehrstuhl Biomaterialien, Prof.-Rüdiger-Bormann Straße 1, Bayreuth, 95447, Germany.
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Kumar M, Pant A, Bansal R, Pandey A, Gomes J, Khare K, Singh Rathore A, Banerjee M. Electron microscopy-based semi-automated characterization of aggregation in monoclonal antibody products. Comput Struct Biotechnol J 2020; 18:1458-1465. [PMID: 32637043 PMCID: PMC7327430 DOI: 10.1016/j.csbj.2020.06.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 06/03/2020] [Accepted: 06/03/2020] [Indexed: 12/22/2022] Open
Abstract
Size-based quantification of small heterogeneous proteins using electron microscopy. Electron microscopy as an orthogonal tool for characterizing protein aggregates. Quick assessment of small heterogeneous proteins via softEM, a GUI-based algorithm.
Aggregation is a critical parameter for protein-based therapeutics, due to its impact on the immunogenicity of the product. The traditional approach towards characterization of such products is to use a collection of orthogonal tools. However, the fact that none of these tools is able to completely classify the distribution and physical characteristics of aggregates, implies that there exists a need for additional analytical methods. We report one such method for characterization of heterogeneous population of proteins using transmission electron microscopy. The method involves semi-automated, size-based clustering of different protein species from micrographs. This method can be utilized for quantitative characterization of heterogeneous populations of antibody/protein aggregates from TEM images of proteins, and may also be applicable towards other instances of protein aggregation.
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Key Words
- Aggregation
- Antibodies
- CD, Circular Dichroism
- Connected component labelling
- DLS, Dynamic Light Scattering
- DPBS, Dulbecco's phosphate-buffered saline
- EM, Electron Microscopy
- Electron microscopy
- FEG, field emission electron gun
- GUI, Graphical User Interface
- HDX-MS, Hydrogen Deuterium Exchange Mass Spectroscopy
- Heterogeneity
- MS, Mass Spectroscopy
- SEC, Size Exclusion Chromatography
- SEC-MALS, Size Exclusion Chromatography Multi Angle Light Scattering
- TEM, Transmission Electron Microscopy
- TV, Total Variation
- UV, Ultra Violet
- mAb, monoclonal Antibody
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Affiliation(s)
- Mohit Kumar
- Kusuma School of Biological Sciences, Indian Institute of Technology - Delhi, Hauz Khas, New Delhi 110016, India
| | - Apoorv Pant
- Department of Physics, Indian Institute of Technology - Delhi, Hauz Khas, New Delhi 110016, India
| | - Rohit Bansal
- Department of Chemical Engineering, Indian Institute of Technology - Delhi, Hauz Khas, New Delhi 110016, India
| | - Ashutosh Pandey
- Kusuma School of Biological Sciences, Indian Institute of Technology - Delhi, Hauz Khas, New Delhi 110016, India
| | - James Gomes
- Kusuma School of Biological Sciences, Indian Institute of Technology - Delhi, Hauz Khas, New Delhi 110016, India
| | - Kedar Khare
- Department of Physics, Indian Institute of Technology - Delhi, Hauz Khas, New Delhi 110016, India
| | - Anurag Singh Rathore
- Department of Chemical Engineering, Indian Institute of Technology - Delhi, Hauz Khas, New Delhi 110016, India
| | - Manidipa Banerjee
- Kusuma School of Biological Sciences, Indian Institute of Technology - Delhi, Hauz Khas, New Delhi 110016, India
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Takatori N, Sato M, Toyoda E, Takahashi T, Okada E, Maehara M, Watanabe M. Cartilage repair and inhibition of the progression of cartilage degeneration after transplantation of allogeneic chondrocyte sheets in a nontraumatic early arthritis model. Regen Ther 2018; 9:24-31. [PMID: 30525072 PMCID: PMC6222284 DOI: 10.1016/j.reth.2018.07.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 07/19/2018] [Accepted: 07/22/2018] [Indexed: 11/29/2022] Open
Abstract
Introduction Using a rat model of nontraumatic early arthritis induced by intra-articular administration of low-dose monoiodoacetic acid (MIA), we transplanted allogeneic chondrocyte sheets and examined the effects on tissue repair. Methods MIA (0.2 mg/50 μl) was injected into the right knee of 20 male Wistar rats. Four weeks later, rats were randomly allocated into three groups: Group A was examined 4 weeks after administration of MIA; Group B, 8 weeks after MIA injection and chondrocyte sheet transplantation, and Group C, 8 weeks after MIA injection but without chondrocyte sheet transplantation. Allogeneic chondrocyte sheets were transplanted into the right knee of Group B rats. Pain was assessed as the weight distribution ratio of the damaged to undamaged limb. The OARSI score was used for histological scoring. Results The limb weight distribution ratio indicated significantly less pain in Group B. Histological scoring showed significant differences in cartilage repair and inhibition of the progression of cartilage degeneration between Groups B and C, but not between Groups A and B, or Groups A and C. Conclusions These findings suggest that, in this rat model of nontraumatic early arthritis induced by low-dose MIA injection, allogeneic chondrocyte sheet transplantation induces cartilage repair and suppresses cartilage degeneration. Therapeutic effects of allogeneic chondrocyte sheets were examined using an arthritis model of rat induced by low-dose MIA. Chondrocyte sheets exhibited sufficient expression of genes important to maintaining a stable cartilage matrix. Transplantation of chondrocyte sheets alleviated pain and induced cartilage repair and suppressed cartilage degeneration.
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Key Words
- AB, Antibiotic-antimycotic solution
- Acan, Aggrecan
- Chondrocyte sheet
- Col1A1, Collagen type Ⅰalpha 1
- Col2A1, Collagen type Ⅱalpha 1
- Comp, Cartilage oligomeric matrix protein
- DMEM, Dulbecco's modified Eagle's medium
- DPBS, Dulbecco's phosphate-buffered saline
- EDTA, Ethylenediaminetetraacetic acid
- FBS, Fetal bovine serum
- IFP, Infrapatellar fat pad
- ITGa10, Integrin alpha-10
- MIA, Monoiodoacetic acid
- Mmp13, Matrix metalloproteinase-13
- Monoiodoacetic acid (MIA)
- OA, Osteoarthritis
- OARSI score
- OARSI, Osteoarthritis research society international
- Osteoarthritis
- PVDF, Polyvinylidene difluoride
- Transplantation
- qPCR, Quantitative real-time polymerase chain reaction
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Affiliation(s)
- Naoki Takatori
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan
| | - Masato Sato
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan
| | - Eriko Toyoda
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan
| | - Takumi Takahashi
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan
| | - Eri Okada
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan
| | - Miki Maehara
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan
| | - Masahiko Watanabe
- Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan
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White JA, Blum JS, Hosken NA, Marshak JO, Duncan L, Zhu C, Norton EB, Clements JD, Koelle DM, Chen D, Weldon WC, Steven Oberste M, Lal M. Serum and mucosal antibody responses to inactivated polio vaccine after sublingual immunization using a thermoresponsive gel delivery system. Hum Vaccin Immunother 2014; 10:3611-21. [PMID: 25483682 PMCID: PMC4514067 DOI: 10.4161/hv.32253] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 07/23/2014] [Accepted: 08/04/2014] [Indexed: 01/27/2023] Open
Abstract
Administering vaccines directly to mucosal surfaces can induce both serum and mucosal immune responses. Mucosal responses may prevent establishment of initial infection at the port of entry and subsequent dissemination to other sites. The sublingual route is attractive for mucosal vaccination, but both a safe, potent adjuvant and a novel formulation are needed to achieve an adequate immune response. We report the use of a thermoresponsive gel (TRG) combined with a double mutant of a bacterial heat-labile toxin (dmLT) for sublingual immunization with a trivalent inactivated poliovirus vaccine (IPV) in mice. This TRG delivery system, which changes from aqueous solution to viscous gel upon contact with the mucosa at body temperature, helps to retain the formulation at the site of delivery and has functional adjuvant activity from the inclusion of dmLT. IPV was administered to mice either sublingually in the TRG delivery system or intramuscularly in phosphate-buffered saline. We measured poliovirus type-specific serum neutralizing antibodies as well as polio-specific serum Ig and IgA antibodies in serum, saliva, and fecal samples using enzyme-linked immunosorbent assays. Mice receiving sublingual vaccination via the TRG delivery system produced both mucosal and serum antibodies, including IgA. Intramuscularly immunized animals produced only serum neutralizing and binding Ig but no detectable IgA. This study provides proof of concept for sublingual immunization using the TRG delivery system, comprising a thermoresponsive gel and dmLT adjuvant.
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Key Words
- CT, cholera toxin
- DPBS, Dulbecco's phosphate-buffered saline
- DU, D-antigen units
- ELISA, enzyme-linked immunosorbent assay
- IM, intramuscular
- IPV, inactivated poliovirus vaccine
- IgA, immunoglobulin A
- IgG, immunoglobulin G
- OPV, oral poliovirus vaccine
- PBS, phosphate-buffered saline
- RT, room temperature
- SL, sublingual
- SSI, Staten Serum Institute
- TMB, tetramethylbenzidine
- TRG, thermoresponsive gel
- adjuvants
- dmLT
- dmLT, double mutant heat-labile toxin
- mucosal immune response
- poliovirus
- sublingual immunization
- thermoresponsive gel
- vaccine delivery
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Affiliation(s)
| | | | - Nancy A Hosken
- Department of Medicine; University of Washington; Seattle, WA USA
| | - Joshua O Marshak
- Department of Medicine; University of Washington; Seattle, WA USA
| | | | | | - Elizabeth B Norton
- Department of Microbiology and Immunology; Tulane University School of Medicine; New Orleans, LA USA
| | - John D Clements
- Department of Microbiology and Immunology; Tulane University School of Medicine; New Orleans, LA USA
| | - David M Koelle
- Department of Medicine; University of Washington; Seattle, WA USA
- Department of Laboratory Medicine; University of Washington; Seattle, WA USA
- Vaccine and Infectious Diseases Division; Fred Hutchinson Cancer Research Institute; Seattle, WA USA
- Department of Global Health; University of Washington; Seattle, WA USA
| | | | - William C Weldon
- Division of Viral Diseases; Centers for Disease Control and Prevention; Atlanta, GA USA
| | - M Steven Oberste
- Division of Viral Diseases; Centers for Disease Control and Prevention; Atlanta, GA USA
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